JP3221840B2 - Underwater waste removal equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater filth remover for removing filth such as excrement of fish farming, bait, and fallen leaves from water.

[0002]

2. Description of the Related Art FIG. 15 is a schematic longitudinal sectional view of an example of a conventionally used sewage purification apparatus for fish farming. In FIG. 15, the supply port 71 a of the sewage supply pipe 71 is located at the lower part of the tank container 72, and the floating filter medium 73 is charged in the tank container 72. Sewage is withdrawn from the pond where fish farming is raised, and the supply port 71a
Supplied from Then, the sewage is filtered by a filter bed 74 formed by the floating filter material 73, and the solid solid contained in the sewage adheres to the filter bed 74 or precipitates and deposits on the bottom 72 a of the tank container 72. The filtered sewage is discharged into a discharge pipe 75
Overflows / outflows from the outlet 75a and is returned to the pond as treated water. The massive solid that has settled and deposited on the bottom portion 72a is discharged from the scrap removal port 76 as appropriate.

In FIG. 15, a gas discharge port 71b is provided on the opposite side of the supply port 71a of the sewage supply pipe 71 to release gas contained in sewage and easily released. In addition, aeration air is blown out from an air port 77 located at the lower part of the tank container 72 to supply oxygen to the aerobic bacteria attached to the filter bed 74, and the aerobic bacteria biologically treats wastewater. One or more tanks 72 are used.

[0004] However in fish for dirty water device as described above, Ki are decreased wastewater purification efficiency as sewage treatment time becomes long, dirty water efficiency by increasing the rate of operation of the purifying device is not improved so much . In other words, the load of the conventional sewage purification apparatus for fish farming tends to increase very much. Therefore, it is necessary to clean the inside of each tank of the sewage purification apparatus for fish farming to reduce the load on the purification apparatus and increase the purification efficiency.

[0005] However, the cleaning of each tank in the above-mentioned conventional fish farm sewage purification apparatus is performed over a long period of time by stopping the flow of sewage into each tank. The frequency of cleaning is also high. For example, the frequency of the cleaning in the fish sewage purification device is 50
When treated with liters / minute of sewage, the rate was about once every two weeks. Therefore, there is a problem that the amount of water used for cleaning (for example, 200 to 300 liters / day) increases.

Further, as a result of the shortening of the sewage treatment time due to the above cleaning, there is a problem that the sewage treatment capacity is reduced.

[0007] Furthermore, filth such as defoliation is mixed into the sewage purifying apparatus for fish farming, which obstructs the water treatment plant.

[0008] As a result of repeated studies to achieve the above object, a sewage filtration apparatus having a simple structure which can be easily and simply cleaned in a short time with a filter medium to which debris adheres is used as a sewage pretreatment apparatus, and a sewage purification apparatus for fish farming. Is found to be extremely effective, and a patent application was filed on November 28, 1996 for the invention of this underwater waste removal apparatus (Japanese Patent Application No. Hei 8
-317777).

[0009]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a sewage treatment apparatus for fish farming having a simple structure capable of minimizing such waste in view of the above circumstances.

The present invention specifically specifies the structure of the above-described underwater waste removal apparatus as an underwater waste removal apparatus.

[0011]

According to the present invention, there is provided an underwater filth remover, comprising: a cylindrical filter member; a support member for rotatably supporting the cylindrical filter member in both forward and reverse directions; A sliding seal member between the support member and the inner and outer peripheral surfaces of the cylindrical filter member;
It has an inner brush and an outer brush which are in sliding relation with each other, a container having an inner surface for fixing the support member, and having an inlet and an outlet for water to be treated and an outlet for filtering residue.

[0012] The support member has a flange-like member which upper and lower ends disposed for each of said cylindrical filter member, the flange-like member is fixed to the inside of the container, and the sliding seal member It is provided on the flange-shaped member. Here, "flange-like"
Means something that acts like a joint, not the shape of the collar.
No.

The brush extends axially between the flange-like members at both ends in the axial direction.

Further, in the underwater waste removal apparatus, in another aspect, the cylindrical filter member may be fixed to the container, and the brush may be rotatably supported by the support member. The sliding seal member may be made of a bearing metal or a synthetic resin.

Further, in another aspect, a rotatable filter, first and second non-rotatable filter support members, first and second non-rotatable filter receivers, and one of the filters
Inner brush and outer brush that are in sliding relationship with the outer and outer surfaces
The filter, the first and second filter support members, and the first and second filter support members are housed in a container with the same axis, It is arranged.

The filter body includes a filter material, a filter material protective material superimposed on the outside of the filter material for protecting the shape of the filter material, and a filter drive material secured to an end of the filter material protective material on the motor drive side. A motor drive side end member, and a non-motor drive side end member fixed to the non-motor drive side end of the filter medium protection material, the filter medium, the filter medium protection material, and the motor drive side end. The member and the non-motor-drive-side end member are housed in a container with the same axis, or are arranged in a flow path.

That is, the first and second filter body support members can be fixed to the underwater waste passage or the container serving as the passage, and are respectively attached to the motor drive side end member and the non-motor drive side end member. Covered to support the filter. The vessel or channel has an inflow of underwater fouling on the first filter body support side and an underwater fume outlet on the second filter body support side; Has an outlet between the filter support members.

The first and second filter receiving members are respectively provided between the motor driving side end member and the first filtering member supporting member, and between the non-motor driving side end member and the second filtering member supporting member. It is inserted between members and has a seal structure.

In another aspect, the first filter support member and the first filter support member, and the second filter support member and the second filter support member
Filter material receiving material is formed integrally with synthetic resin,
And the second filter support and receiver.

[0020] Therefore, it has an inner surface for fixing the first and second filter support members (the first and second filter support and receiving members), the inlet and outlet of the water to be treated, and the filter residue. An integrated underwater waste removal apparatus is provided with a container having a discharge port. In order to prevent clogging of the filter, the filter must be rotatable, and the inner brush and the inner brush which are in sliding relation with the inner and outer peripheral surfaces , respectively.
And an outer brush. In particular, since the brush is deformed to one side when sliding in one direction, the filter can be rotated in both forward and reverse directions by a timer to prevent deformation of the brush.

According to the present invention, it is possible to provide an underwater filth remover having a simple structure that can be easily and simply cleaned in a short time with the filter medium to which the scum adheres, as a sewage pretreatment device for a sewage purification device for fish farming.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings, but the dimensions of each member on the drawings do not match.

(1) Sewage Filtration Apparatus FIG. 1 is a partially cutaway perspective view showing an embodiment of an underwater waste removal apparatus (excluding a container) of the present invention. Is shown. FIG. 2 to FIG.
It is a perspective view of each member which comprises the underwater filth removal apparatus.
2 is a filter, FIG. 3 is a first filter support,
FIG. 4 shows a second filter support, FIG. 5 shows a first filter receiver (the same applies to a second filter receiver (not shown)), FIG. 6 shows a filter, and FIG. 8 is a motor drive side end member,
9 and FIG. 9 show the non-motor-driven side end member. FIG.
2 are partially cutaway perspective views, in which the upper and lower parts are shown at different angles.

The underwater waste removal apparatus (excluding the container) 10 shown in FIG. 1 has a cylindrical filter body 20 rotatable around a shaft 21 and a cylindrical (annular) non-rotatable , in other words,
Flange-shaped first filter body support member 11 and second filter body support member 12, and non-rotating cylindrical (annular) first filter body support member 13 and second filter body support member 14 (described later) The filter body 20, the first filter body support member 11, the second filter body support member 12, and the first filter body receiving member 1
The axes of the third and second filter receiving members 14 are the same axis 21.

The filter body 20 includes a cylindrical filter medium 22 (FIG. 6) and a filter medium 22 for protecting the shape of the filter medium 22.
Cylindrical filter material protective material 23 (FIG. 7)
And a cylindrical motor drive side end member 24 (FIG. 8) fixed to the motor drive side end of the filter medium protection material, and a cylindrical shape fixed to the non-motor drive side end of the filter medium protection material. And the non-motor-drive-side end member 25 (FIG. 9).
The shaft cores of the filter material protective member 23, the motor drive side end member 24, and the non-motor drive side end member 25 are the same shaft center 21. That is, a filter member 22 as shown in FIG. 6 is superposed on the inside of a protective member 23 as shown in FIG. 7, and one end is covered with an end member 24 as shown in FIG. Is covered with the end member 25 as shown in FIG.

The filter medium 22 (FIG. 6)
It is a 0 mesh wire mesh. Further, the filter medium protective member 23 (FIG. 7) is made of a thin plate in which a large number of holes 23a having a diameter of 3 to 8 mm are scattered. A screw hole 23b for screwing the filter material protection member 23 and the motor drive side end member 24 is formed in the filter material protection member 23, and a screw hole 23b is formed between the filter material protection member 23 and the non-motor drive side end member 25. Screw holes 23c are provided on the side surfaces of the cylinder. Further, the motor driving side end member 2
Reference numeral 4 denotes a filter 2 on the upper surface of the cylindrical portion around the axis 21.
Motor M for rotating 0 (see FIG. 14 described later)
The motor connecting shaft 24b connected to the drive shaft is fixed by a cross member (three in the figure), and three sewage passages 24c are provided. The number of the sewage passages 24c may be two or four or more. The motor drive side end member 24 is provided with a screw hole 24a on the side of the cylinder for screwing the filter medium protective member 23 and the motor drive side end member 24. The non-motor drive side end member 25 is provided with a screw hole 25a on the cylindrical side surface for screwing the filter material protection member 23 and the non-motor drive side end member 25 with screws.

As shown in FIG. 8 (b), the motor coupling shaft 24b is hollow and opens at a coupling portion with the beam member. The tip of has entered.

In the underwater waste removal apparatus 10, the first
The first filter support 11 and the second filter support 12 are shown in FIG. 13 for the filter support 11 (FIG. 3) and the second filter support 12 (FIG. 4). In order to fix to such a container or a specific flow path, the first filter support 11
Through holes 11a, 11b (through holes 12a, 12b) that penetrate the side wall of (second filter support member 12) and are parallel to shaft core 21.
Is provided. The through hole 11a (11b) and the through hole 12a (1
By inserting both ends of the rod member into 2b) and fixing them with bolts or the like, the whole is integrated. In this case, it is possible between the first filtering body supporting member 11 and the second filtering body support member 12, by extending the outer brush 7 8 (FIG. 13), fixed thereto. Although two through holes are provided in each of FIGS. 3 and 4, one or three or more through holes may be provided.

As shown in FIG. 3A, a motor-driving-side end member of the filter 20 is provided inside the filter receiver (oil-less seal) 13 of the first filter support 11 (FIG. 8A). Is inserted, and the filter body 20 is inserted inside the filter body receiving member (oilless seal) 14 of the second filter body support member as shown in FIG.
Of the non-motor drive side end member 25 (FIG. 9) is inserted.

A fixing member 82 for fixing one end of the inner brush fixing rod member 30 is attached to one side of the second filter support member 12.

The first filter receiving member 13 (the second filter receiving member 14) is connected to the motor drive side end member 24 of the filter 20 and the first filter receiving member 14.
(Between the non-motor-drive-side end member 25 of the filter body 20 and the second filter body support member 12) (see FIG. 13 described later). Filter body receiving material 13, 14
Is a bearing metal such as bronze and babbit metal. Typically, it is an oil seal. The brush is made of a nylon member and is trimmed to a length of, for example, 8 mm.

FIG. 10 is a partially cutaway perspective view showing another embodiment of the filter of the underwater waste removal apparatus, in which the upper and lower parts are shown at different angles. Here, two filters are connected by a sleeve 36.

FIG. 11 is a perspective view of a sleeve connecting the two filter bodies of FIG.

The filter 30 shown in FIG. 10 includes the same filter media 31 and 32 as the filter media 22 (FIG. 6) and the filter media protection material 2.
3 (FIG. 7). The two filter media protective members 33 and 34 have the same shaft core 35. In addition, two adjacent filter media protective materials 3
A sleeve 36 coaxial with the shaft core 35 is interposed between 3 and 34, and the filter material protective members 33 and 34 are held by the flange portion 37. Other members are the same as those of the filter body 20. Even in the case where the number of the cylindrical filter materials and the filter material protective materials is more than two, the sleeve of FIG. 11 may be interposed between the adjacent filter material protective materials similarly to FIG.

FIG. 12 is a perspective view of a filter body support and a receiver integrally formed of an organic resin (the same applies to a second filter support / receiver (not shown)). That is, the function of the first filter support 11 (second filter support 12),
Similarly, first filter receiving member 13 (second filter receiving member 14)
The first filter support / receiving material 41 (second filter support / support) is made of synthetic resin, for example, nylon.
The receiving member 42 (not shown) is integrally formed.

The first filter supporting / receiving member 41 (second filter supporting / receiving member 42) has a through hole 11a of the first filter supporting member 11 (second filter supporting member 12). , 11b (through holes 12a, 12b) corresponding to through holes 41a, 41b
(Through holes 42a, 42b (not shown)) are provided. In addition, the inner surface shape of the resin filter support / receiving member 41 can be appropriately formed corresponding to the filter 20.

(2) Assembly of Filter Body The filter body 20 shown in FIG. 2 is assembled as follows.
That is, the filter medium protection material 23 is put on the filter medium 22, and the motor drive side end member 24 (non-motor drive side end member 25) is provided on the motor drive side end (non-motor drive side end) of the filter medium protection material 23. The filter material protective material 23 and the motor drive side end member 24 (non-motor drive side end member 25) are screwed into the screw holes 23b.
7 (see FIG. 7) and 24a (see FIG. 8) (screw holes 23c (see FIG. 7) and 25a (see FIG. 9)) and are screwed with screws 26 (screw 27).

The filter body 30 shown in FIG. 10 is assembled in the same manner as that of the filter body 20 shown in FIG. 2 except that the filter medium protection member 33 and the filter medium protection member 34 are combined with a sleeve 36 interposed therebetween. Same as assembly.

(3) Attachment of Filtration Body to Container The underwater filth remover 10 shown in FIG. 1 is attached to the container 51 (FIG. 13) serving as a channel for underwater filth as follows.
The one integrated with the container 51 may be called an underwater dirt removal device. FIG. 13 is a partial cross-sectional explanatory view showing a state in which the underwater waste removal apparatus 10 is attached to a container 51 serving as a flow path of underwater waste.

The container 51 is, according to one embodiment, 76 mm
It is a pipe with an inner diameter, and the inflow port 61 and the outflow port 62 are 38
mm.

The first filter support 11 (the second filter support) is attached to the motor drive side end member 24 (non-motor drive side end member 25) of the filter body 20 assembled as described in (3) above. 12), the first filter receiving member 13 (the second filter receiving member 14) includes the motor driving side end member 24 (the non-motor driving side end member 25) and the first filter supporting member 11 (the second And the filter support 12).

Next, a through-hole 11a (through-hole 11b) provided in the first filter support 11 and a through-hole 12a (through-hole 12b) provided in the second filter support 12 are provided at both ends. Threaded bar 52 (bar 53) is inserted.

Then, both ends of the bar 52 (bar 53) are
Hole 5 provided in support wheel 54 fixed to container 51
4 a (hole 54 b) and a hole 55 a (hole 55 b) also provided in the support wheel 55, and stopped with a nut 56 (nut 57). Note that welding may be used instead of the nut stopper.

When the underwater waste removing apparatus shown in FIG. 12 is installed, the first filter body support member 11 and the second
Except that the through holes provided in the first filter supporting / receiving member 41 and the second filter supporting / receiving member 42 are used instead of using the through-holes provided in the filter supporting member 12 of FIG. The mounting method may be the same as that of the apparatus shown in FIG. In the case of mounting the apparatus of FIG. 12, the first filter support / receiver 41 (the second filter support / receiver 42) which is an integral body is used.
Filter support / receiving material 41 (second filter support / receiving material 4)
2) The above-mentioned covering on the motor drive side end member 24 (non-motor drive side end member 25) can be easily performed.

(4) Use of Underwater Soil Removal Device The underwater waste removal device of the present invention attached to the flow path of wastewater is used as follows. FIG. 14 is a schematic vertical sectional view showing an example of use of the underwater waste removal apparatus of the present invention.

The sewage is sent to the underwater waste removal apparatus 10 by the pump P from the inlet 61 and passes through the inside of the support wheel 54 and from the inside of the filter body 20 to the outside. To drain sewage. When cleaning the filter body 22 in which the residue is accumulated, the motor connecting portion 24a (see FIG. 2) of the motor drive side end member 24 is connected to the motor M to rotate the filter body 20, and the residue adhered to the inner surface of the filter medium 22. is scraped off by the inner brush 79, lees protruding on the outer surface of the filter medium 22 is Ru preparative rubbed by the outer brush 78. Inner brush
The scraps scraped off at 79 pass through the support wheel 55 from inside the filter body 20 and settle down below the flow path 51. The sediment that has settled out is appropriately pulled out from the drawing-out port 63 via the valve B.
At the time of the above cleaning, the pump P may or may not send sewage (the valve A is open) (the valve A is closed). In addition, it is not preferable from the viewpoint of environmental hygiene that the extracted residue is discharged to the sewage as it is. Therefore, it is desirable to disintegrate with microorganisms by aerobic treatment or anaerobic treatment and then discard.

The operation sequence is as follows. That is, in the normal operation, the pump P and the valve A are open and the valve B is closed. During cleaning, pump P and valve A
Is closed, the valve B is opened, and then the pump P is opened.
After the washing is completed, the pump P and the valve B are closed, the valve A is opened, and then the pump P is opened to enter a normal operation.

As described above, the underwater filth remover of the present invention has a simple structure and does not interrupt sewage treatment, and can easily and easily remove filth in a short time without using new water with the attached filter media attached. it can. In addition, by changing the dimensions of the entire device, it is possible to remove from sewage water as thin as fish dung and as large as deciduous leaves.

[0049]

The underwater filth remover of the present invention has a simple structure and can easily remove filth such as leaf litter, dung and scum in water in a short time.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of an underwater waste removal apparatus of the present invention.

FIG. 2 is a partially cutaway perspective view of a filter constituting the underwater waste removal apparatus of FIG.

FIG. 3 is a perspective view and a sectional view of a first filter support member constituting the underwater waste removal apparatus of FIG. 1;

FIG. 4 is a perspective view and a cross-sectional view of a second filter support member constituting the underwater waste removal apparatus of FIG. 1;

FIG. 5 is a perspective view of a first filter receiving member constituting the underwater waste removal apparatus of FIG. 1;

FIG. 6 is a perspective view of a filter medium constituting the underwater waste removal apparatus of FIG. 1;

FIG. 7 is a perspective view of a filter body protective material constituting the underwater waste removal apparatus of FIG. 1;

FIG. 8 is a perspective view and a sectional view of a motor driving side end member constituting the underwater waste removal apparatus of FIG. 1;

FIG. 9 is a perspective view of a non-motor-driven side end member constituting the underwater waste removal apparatus of FIG. 1;

FIG. 10 is a partially cutaway perspective view showing another embodiment of the filter of the underwater waste removal apparatus of the present invention.

FIG. 11 is a perspective view of a sleeve constituting the filter of FIG. 10;

FIG. 12 is a perspective view of a first filter supporting / receiving member constituting the underwater waste removal apparatus of the present invention.

13 is a partial cross-sectional explanatory view showing a state in which the underwater waste removal apparatus of FIG. 1 is attached to a flow path of wastewater.

FIG. 14 is a schematic longitudinal sectional view showing an example of use of the underwater waste removal apparatus of FIG. 1;

FIG. 15 is a schematic longitudinal sectional view showing an example of a conventionally used underwater waste removal apparatus.

[Explanation of symbols]

Reference Signs List 10 Underwater waste removal device 11, 12 Filament support material 11a, 11b, 12a, 12b, 41a, 41b, 42a, 42b
Through holes 13, 14 Filter body receiving material 20, 30 Filter body 21, 35 Shaft core 22, 31, 32 Filter material 23, 33, 34 Filter material protective material 23a, 54a, 54b, 55a, 55b Hole 23b, 23c, 24a , 25 a Screw hole 24 Motor drive side end 24 b Motor coupling shaft 24 c Sewage passage 25 Non-motor drive side end 26, 27 Screw 36 Sleeve 37 Flange 41, 42 Filter body support / receiving material 51 Flow path 52, 53 Bar 54 , 55 support wheel 56, 57 nut 61 sewage inlet 62, 75 a sewage outlet 63, 76 scum discharge port 71 sewage supply pipe 71 a sewage supply port 71 b gas outlet 72 tank vessel 72 a tank vessel bottom 73 flotation filter 74 filter bed 75 Sewage outflow pipe 77 Air port 78 Outer brush 79 Inner brush 80 Inner brush fixing rod member 82 Fixing members A, B M motor P pump

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-6-39215 (JP, A) JP-A-8-80405 (JP, A) JP-A-2-277516 (JP, A) 150010 (JP, U) JP 7-24406 (JP, U) JP-B 50-36104 (JP, B2) JP 4-15288 (JP, Y2) JP-B 35-17885 (JP, Y1) (58) Field surveyed (Int.Cl. ⁷ , DB name) B01D 29/00-29/96 B01D 33/00-33/82

Claims (8)

(57) [Claims] A cylindrical filter member; a support member rotatably supporting the cylindrical filter member in both forward and reverse directions; a sliding seal member between the cylindrical filter member and the support member; An inner brush having a sliding relationship with an inner peripheral surface of the cylindrical filter member, and an outer periphery of the cylindrical filter member
An outer brush having a sliding relationship with the surface and the support member fixed to the inside.
With a constant, inlet and outlet of the water to be treated, as well as have a filtration cake outlet, the outlet of the water to be treated, an inlet
And from the filter residue outlet with a cylindrical filter member
A water soil removal device having a container that has been,
The support member has flange-shaped members arranged at both ends in the axial direction of the cylindrical filter member, the flange-shaped member is fixed inside the container, and the sliding seal member is the flange-shaped member. And the outer brush
And an underwater dirt removing device in which an inner brush extends in an axial direction between flange-shaped members at both axial ends of the cylindrical filter member. 2. The cylindrical filter section according to claim 2, wherein the outer brush is a cylindrical filter section.
Is fixed to the flange-shaped members at both ends in the axial direction of the material.
The lash is a flank at the axial lower end of the cylindrical filter member.
The underwater waste removal apparatus according to claim 1, which is fixed to the jig-shaped member . 3. The underwater waste removal apparatus according to claim 1, wherein the sliding seal member is made of a bearing metal or a synthetic resin. 4. A non-rotating first and second filter support.
And a first material fixed to the first and second filter support members.
1st and 2nd filter receiving material, and the 1st and 2nd filtration
A filter body rotatably supported by a body receiving material;
An inner brush having a sliding relationship with an inner peripheral surface, and an outer periphery of the filter;
The filter, the first and second filter support members, and the first and second filter support members having the same axis, body, a filtering material, a filtering material protective material overlaid on the outside of the filtering material for protecting the shape of the filter medium is secured to the motor drive end of the filtration material protective member, the motor drive shaft And a non-motor-drive-side end member fixed to the non-motor-drive-side end of the filter material protection material, the filter material, the filter material protection material, and the motor drive. The axial ends of the side end member and the non-motor-driven side end member are the same, and the first and second filter support members can be fixed to the flow path of the sewage for fish farming. Supporting the filter body over the non-motor-drive-side end member;
And a second filter receiving member, respectively, between the motor drive side end member and the first filter support member, between the non-motor drive side end member and the second filter support member , Drive end
An underwater dirt removing device that is slidably fitted to a member and a non-motor-driven side end member . 5. The at least one of the first and second filter receiving members is made of a bearing metal or a synthetic resin.
An underwater waste removal apparatus according to claim 1. 6. A wire mesh having a filter material of 40 to 100 mesh.
The filter material protective material is made of a thin plate having a hole of 3 to 8 mm.
The underwater waste removal apparatus according to claim 4. 7. A filter material, a filter material protective material, a motor drive side end member, a non-motor drive side end member, and first and second filter members.
And the first and second filter receiving members,
Cylindrical der is, superimposed on the outside of the filter medium and said filter medium
Filter media can be connected to each other with multiple sets of sleeves.
Underwater soil removal device of claim 4 are I. 8. The method of claim 1 wherein the first and second filter media supports are provided on the inside.
Is fixed, inlet and outlet of the water to be treated, as well as have a filtration cake outlet, the outlet of the water to be treated flows
Underwater soil removal apparatus according to claim 4 having a mouth and a container that is separated by filtration body from the filtration cake discharge port.